Fabric packing.



C. S. BAVIER & E. P. BANFIELD.

FABRIC PACKING.

APPLICATION mum NOV. 15, 1911.

1,040,259, Patented Oct. 8, 1912.

UNITED STATES PATENT OFFICE.

CHARLES S. BAVIER AND EDWIN F. BANFIELD, OF NEW YORK, N. Y.

FABRIC PACKING.

Specification of Letters Patent. Patented Oct. 8, 1912 Application filedNovember 15, 1911. Serial No. 660,499.

wood. Said shavings of lead are preferably in the form of Hat filaments,as indicated. In order to produce the necessary thickness and body ofthe packing, other strips of fabric and layers of lead and fracturedwood may be laid on alternately, and the same result of having alternatelayers of fabric and lead and fractured wood is conveniently attained byrolling the lead covered fabric into a spiral roll, as indicated in Fig.3. The external edge of the fabric A may then be stitched to theunderlying fabric as at (1, whereby the packing is retained in the rollform. Of course the packing may also be made in sheets, in ring form, orany other desired form.

The layers of fabric A between the layers of lead B effectually preventthe filaments of lead from injuriously coalescing or amalgamatiug underthe pressures and other conditions to which the packing is subjectedwhen in use; and the quality of the packing is improved by sprinklingthe said fabric A B, one or all, with shred- To all whom it may concern.

Be it known that we, CHARLES S. .BAVIER and EDWIN F. BANFIELD, bothcitizens of the United States, and residents of the borough ofManhattan, city, county, and State of New York, and borough of Brooklyn,in said city, county, and State of New York, respectively, have inventedcertain new and useful Improvements in Fabric Packing, of which thefollowing is a specification.

This invention relates to improvements in fabric packing, especially forengines and motors.

The invention consists in the combination of separate independentlymovable filamentary bodies such as shavings of lead or its alloys,finely fractured wood such as sawdust, and fabric such as cheese cloth.For brevity We hereinafter use the term lead to signify not onlymetallic lead but any alloy thereof suitable for packing.

Lead and its alloys have properties rendering them advantageous forpacking. But the pieces of metal must be kept separated and preventedfrom coalescing or being amalgamated together when in use; and hithertono means has been known for preventing such coalescing or amalgamating.But we have found that lead shavings will remain separate andindependently movable when they are combined or mixed with particles offinely fractured wood such as sawdust, and especially when layers ofsaid shavings are separated by a strip or strips of'fabric such ascheese cloth.

vVe find that the said fabric is useful in holding the filaments and theshredded wood in their proper position'in the packing, preventing theirgathering or bunching in certain parts only of the packing, andpreserving the desired uniformity of structure in all parts of thepacking when in use.

Referring to the drawings-which accompany the specification, to aid thedescription, Figure 1, is a plan view of a strip of fabric with leadfilaments. Fig. 2 is an edge view of a strip of fabric with leadfilaments. Fig. 3 is a perspective view of one form of the completepacking. Fig. 4, shows two strips of fabric with lead filaments betweenthem.

On a strip of any suitable fabric A, referably woven cheese cloth, ofproper width, are spread one or more layers of separate and independentshavings of lead B together with the particles of finely fractured andlead filaments ded wood, preferably in the form of sawdust.

W hen in use, the part of fabric in contact with the moving part ofengine or motor, as piston rod, very soon wears away and the leadlubricates the moving part, while, 'at the same time, the packing keepsthe joint tight.

Packing constructed as hereinbefore described, is useful for makingtight joints around piston rods of engines and motors, and for manyother purposes. The independency of the lead filaments permits them tofreely work and thereby to adapt the packing to form steam and watertight joints around piston rods and in other places.

Now having described our improvements, we claim as our invention- 1. Asa new article of manufacture, packing composed of independently movablesubstantially flat lead strips and particles of finely fractured woodbetween the several lead strips, substantially as described.

2. As a new article of manufacture, packing composed of independentlymovable substantially flat lead strips, particles of finely fracturedwood being between the several lead strips, and a fabric covering forsaid lead strips and finely fractured wood, substantially as described.

3. As a new article of manufacture, a packing roll composed of a spiralfabric constituting a covering for the roll, and New York and State ofNew York this 4th spiral layers consisting of independently day ofNovember, A. D. 1911.

movable lead strips and particles of finely CHARLES S. BAVIER. fracturedWood between the several lead EDWIN F BANFIELD. 5 strips of each spirallayer, substantially as Witnesses:

described. G. W. HOPKINS,

Signed at New York city in the county of W. G. HAVENS.

